Negative pressure medical application

Abstract

The utility model relates to the technical field of medical instruments, in particular to a negative pressure medical application which comprises an application main body, a negative pressure material is arranged on the application main body, and a negative pressure suction pipe is arranged on the negative pressure material in a penetrating mode. The negative-pressure suction pipe comprises a negative-pressure access end for ejecting the upper part of a negative-pressure material, a clamping part in the middle and a flat-head suction pipe at the lower end of the clamping part; wherein the negative pressure access end is connected with a negative pressure generating device, the clamping part is located in the negative pressure material, an air exhaust hole is formed in the clamping part, and the flat-head suction tube extends into a wound; a medicine injection pipe assembly is arranged in the negative pressure material and comprises a medicine injection branch pipe, and one end of the medicine injection branch pipe is inserted into the negative pressure material; the medicine injection pipe assembly is arranged in the negative pressure material, medicine injection disinfection can be carried out after negative pressure treatment, and the infection risk of a wound is reduced; meanwhile, the two medicine injection branch pipes are located in the negative pressure material and located on the wound part side by side, structural inner ribs are provided for the negative pressure material, deformation caused by movement can be reduced, and recovery of the wound is facilitated.

Description

Technical Field

[0001] This utility model relates to the field of medical device technology, specifically a negative pressure medical dressing. Background Technology

[0002] Negative pressure wound therapy (NPWT) is an advanced treatment method in wound repair surgery. It combines negative pressure wound therapy technology with the application of a dressing. The principle is to continuously or intermittently generate negative pressure through a suction device, keeping the wound in a sealed state, effectively preventing external bacteria from entering and reducing the risk of infection. Simultaneously, negative pressure can promote blood circulation within the wound, stimulate the growth of local granulation tissue, and accelerate the wound healing process. Furthermore, negative pressure therapy can promptly remove infectious fluid, necrotic tissue, bacteria, and other harmful substances from the wound, creating a clean and healing-promoting environment.

[0003] Existing medical negative pressure dressings only have negative pressure suction function, which can only remove accumulated fluid. However, there will still be a small number of bacteria in the wound, which requires sterilization and disinfection. Moreover, after negative pressure treatment, the dressing is prone to deformation, which will put stress on the wound and is not conducive to wound healing. To solve the above problems, there is an urgent need to design a negative pressure medical dressing that can inject medication and sterilize while having a certain degree of deformation resistance.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the general background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] This invention provides a negative pressure medical dressing that solves the problems mentioned in the background.

[0006] A negative pressure medical dressing includes a dressing body with a negative pressure material on it and a negative pressure suction tube penetrating through the material. The suction tube includes a negative pressure inlet end extending from the upper part of the material, a locking portion in the middle, and a flat-tipped suction tube at the lower end of the locking portion. The negative pressure inlet end is connected to a negative pressure generating device. The locking portion is located within the negative pressure material and has an air extraction hole. The flat-tipped suction tube extends into the wound. An injection tube assembly is located within the negative pressure material. The assembly includes an injection manifold, one end of which is inserted into the negative pressure material, and the other end extends out of the material and has a syringe connector. Injection holes are evenly distributed on the injection manifold, and an outlet hole is located at the bottom of the negative pressure material. The number and position of the outlet holes are consistent with and connected to the injection holes. The inclusion of the injection tube assembly within the negative pressure material allows for drug injection and disinfection after negative pressure treatment, reducing the risk of wound infection.

[0007] Furthermore, the injection tube assembly is Y-shaped, including two injection tubes arranged side by side. The two injection tubes are located on both sides of the snap-fit ​​part of the negative pressure suction tube. A syringe connector is provided at the junction of the two injection tubes. The injection end of the injection tube connector has a movable joint sealing cap. The two injection tubes are located inside the negative pressure material and are arranged side by side at the wound site, providing structural ribs for the negative pressure material, which can reduce deformation caused by movement and facilitate wound healing.

[0008] Preferably, the dressing body is made of hydrocolloid; hydrocolloid is a transparent material with the ability to absorb wound exudate. After absorbing the exudate, the hydrophilic particles in the dressing can form a gel-like semi-solid substance that adheres to the base of the wound, providing and maintaining a moist environment conducive to wound healing.

[0009] Furthermore, the bottom of the negative pressure material is coated with a silver ion coating. Silver ions have a bactericidal and disinfecting effect, and dissolve upon contact with wound exudate, further killing bacteria near the wound.

[0010] The beneficial effects of this application are that the negative pressure material is equipped with a drug injection tube assembly, which can be used for drug injection and disinfection after negative pressure treatment, reducing the risk of wound infection; at the same time, the drug injection tubes are located inside the negative pressure material and are arranged side by side at the wound site, providing structural reinforcement for the negative pressure material, which can reduce deformation caused by movement and facilitate wound healing.

[0011] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of a negative pressure medical dressing according to an embodiment of the present invention;

[0013] Figure 2 A bottom view of a negative pressure medical dressing provided in an embodiment of this utility model;

[0014] Figure 3 An exploded view of a negative pressure medical dressing structure provided in an embodiment of this utility model.

[0015] The attached diagram lists the components represented by each number as follows:

[0016] 1. Adhesive body; 2. Negative pressure material; 201. Dispensing port; 3. Negative pressure suction tube; 301. Negative pressure connection end; 302. Snap-fit ​​part; 303. Flat-head suction tube; 304. Air extraction port; 4. Injection tube assembly; 401. Injection manifold; 402. Injection port; 5. Syringe connector; 6. Connector sealing cap; 9. Silver ion coating. Detailed Implementation

[0017] The negative pressure medical dressing of this utility model will be described in more detail below with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1 -3 as shown:

[0019] To achieve the above objectives, the technical solution of this utility model is as follows: A negative pressure medical dressing is provided, comprising a dressing body 1, a negative pressure material 2 disposed on the dressing body 1, and a negative pressure suction tube 3 penetrating the negative pressure material 2; the negative pressure suction tube 3 includes a negative pressure inlet end 301 at the upper part of the negative pressure material 2, a middle snap-fit ​​part 302, and a flat-head suction tube 303 at the lower end of the snap-fit ​​part 302; wherein the negative pressure inlet end 301 is connected to a negative pressure generating device, which can be a negative pressure machine, or, to save costs, a negative pressure silicone drainage ball can be connected; the snap-fit ​​part... Part 302 is located inside the negative pressure material 2. The snap-fit ​​part 302 is provided with an air extraction hole 304. The flat-headed suction tube 303 extends into the wound. The negative pressure material 2 is provided with an injection tube assembly 4. The injection tube assembly 4 includes an injection branch tube 401. One end of the injection branch tube 401 is inserted into the negative pressure material 2, and the other end extends out of the negative pressure material 2 and is provided with a syringe connector 5. The injection branch tube 401 is provided with injection holes 402 evenly distributed. The bottom of the negative pressure material 2 is provided with a drug outlet hole 201. The number and position of the drug outlet holes 201 are the same as those of the injection holes 402 and are connected.

[0020] The injection tube assembly 4 is Y-shaped and includes two parallel injection tubes 401. The two injection tubes 401 are located on both sides of the snap-fit ​​part 302 of the negative pressure suction tube 3. A syringe connector 5 is provided at the junction of the two injection tubes 401. The injection end of the injection tube connector has a movable connector sealing cap 6. The two injection tubes 401 are located inside the negative pressure material 2 and are arranged side by side at the wound site, providing structural ribs for the negative pressure material 2, which can reduce deformation caused by movement and facilitate wound healing.

[0021] Preferably, the dressing body 1 is made of hydrocolloid; hydrocolloid is a transparent material with the ability to absorb wound exudate. After absorbing the exudate, the hydrophilic particles in the dressing can form a semi-solid substance similar to a gel, which adheres to the base of the wound, providing and maintaining a moist environment conducive to wound healing.

[0022] Furthermore, the bottom of the negative pressure material 2 is coated with a silver ion coating 9. Silver ions have a bactericidal and disinfecting effect, and dissolve upon contact with wound exudate, further killing bacteria near the wound.

[0023] After the accumulated fluid is removed by negative pressure, the negative pressure material 2 is sealed, and medication can be injected and disinfected through the injection tube assembly 4 to reduce the risk of wound infection. After disinfection, excess medication is removed by negative pressure. At the same time, two injection tubes 401 are located inside the negative pressure material 2 and are arranged side by side at the wound site to provide structural ribs for the negative pressure material 2, which can reduce deformation caused by movement and facilitate wound healing.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The exemplary embodiments of the present invention have been described in detail above with reference to preferred embodiments. However, those skilled in the art will understand that various modifications and alterations can be made to the above specific embodiments without departing from the concept of the present invention, and various combinations can be made to the various technical features and structures proposed by the present invention without exceeding the protection scope of the present invention.

Claims

1. A negative pressure medical dressing, characterized in that: It includes a dressing body, a negative pressure material on the dressing body, and a negative pressure suction tube penetrating through the negative pressure material; The negative pressure suction tube includes a negative pressure inlet end at the top of the negative pressure material, a middle snap-fit ​​part, and a flat-head suction tube at the bottom of the snap-fit ​​part; wherein the negative pressure inlet end is connected to a negative pressure generating device, the snap-fit ​​part is located inside the negative pressure material, the snap-fit ​​part is provided with an air suction hole, and the flat-head suction tube extends into the wound. The negative pressure material is equipped with a drug injection tube assembly, which includes a drug injection branch tube. One end of the drug injection branch tube is inserted into the negative pressure material, and the other end extends out of the negative pressure material and is equipped with a syringe connector. Drug injection holes are evenly distributed on the drug injection branch tube, and drug outlet holes are provided at the bottom of the negative pressure material. The number and position of the drug outlet holes are consistent with and connected to the drug injection holes.

2. The negative pressure medical dressing according to claim 1, characterized in that: The drug injection tube assembly is Y-shaped and includes two drug injection tubes arranged side by side. The two drug injection tubes are located on both sides of the clamping part of the negative pressure suction tube, and a syringe connector is provided at the junction of the two drug injection tubes.

3. The negative pressure medical dressing according to claim 1, characterized in that: The material of the dressing body is hydrocolloid.

4. A negative pressure medical dressing according to claim 1, characterized in that: The bottom of the negative pressure material is coated with a silver ion coating.

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